I dunno, Trump is thrashing Biden in the polls right now, Bidens campaign is just a giant limp noodle and it's probably too late to get back the narrative. It seems like they aren't taking a Trump win seriously and just assume that Americans are not morons, which is a bad assumption. GOP would probably hope that a trump win drives downballot candidate wins.
I think you are overestimating just how many Americans are giving any mental space to the 2024 election right now. I’d bet a sizeable chunk of the electorate isn’t even considering that it’s an election year. IRL I don’t hear anyone talking about the candidates or voting. The only yards I see with political signs are ones that have had them up for 3+ years. It helps that I’m in one of the 47 states that hasn’t had their primary yet, but even then the outcome seems such a forging conclusion only the due hard politicos seem likely to show (only about 5% of adult Iowans bothered to caucus for example). I
I tend to agree that general polling is of limited value this far out and I believe has close to 0 predictive power on the November outcome. Look at the RCP averages of previous years:
2004: had Kerry up almost the whole race, ends up losing by 2 points.
2008: polling had McCain up 3 points in September 2008, Obama ended up winning by 7.
2012: Sept 2012 had Obama up 0-1 points. Obama ends up winning by 4.
2016: Sept 2016 has Hillary up 1-2 points, she wins by 2.
2020: Sept 2020 had Biden up 8, he wins by 4.5.
Polling isn't useless, but the numbers only tell 1 story.
All that to say, general polling also isn't very useful if the story of the election is really about 4-6 states. (AZ, WI, MI, PA, and GA). (see: 2016 election)
Look at state wide polling. Biden is down in those polls, but most other polling continues to show people turning out for Dem candidates:
Nevada polling: Trump +11, but Dem Senator +2
Arizona: Trump +5, Dem Senator +5
Penn: Trump +2, Dem Senator +9
The polling is coherent at the moment, and I think that's what nereo is pointing at. It's simply that people aren't really considering the political reality yet. How does it shake out in the end?
Trump is affecting down ballot races for the GOP. Biden is depending on down ballot races to boost him up.